Improvement in machines for shaving metal for printers  rules and leads



' ZSheets-SheetL H. J. STONE. MACHINE FOB. SI-IAVING METAL FOR PRINTERS RULES AND LEADS. No.184,738. Patented Nov. 28,1876,

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H. J. STONE.

MACHINE FDE SHAVINGAMETAL Eon PRINTERS RULES AND LEADS. No 184,73*@ Patented Nov. ze, 1876.

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PATENT HENRY J. STONE, OF4 NEW HAVEN, CONNECTICUT, ASSIGNOR .TO WILLIAM QUAIL, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN MACHINES FOR SHAVING METAL FOR PRINTERS RULES AND LEADS.

Specification forming part of Letters Patent No. 184,738, dated N ovember28, 1876; application filed t March 15,1876.

To all whom it may concern:

Be it known that I, HENRY J. STONE, of the city and county of New Haven, Connecticut, have invented, made, and applied to use a new and Improved Machine for Slim ing or Dressing Printers Leads or Brass Rules; and that the following is afull, clear, and correct description of same, reference being had to the accompanying drawing, making part of this specification, and to the letters of reference marked thereon,` in which- Figure 1 is a side view of my machine for shaving or dressing printers leads orrule.

Fig. 2 is a longitudinal section of the same.A

Fig. 3 is a front view of the same. Fig. 4 is a transverse sectional View of the machine. Fig. 5 is a detached View, showing knife-block. Fig. 6 is a top view of knife-block. Fig. 7 is a side view of knife-block.

In the drawing, like parts of the invention are pointed out by the same letters of reference.

The nature of the present invention consists in the construction, as more fully hereinafter set forth, of an improved machine for shaving and dressing printers leads or brass rule, the objectvof the invention being the production of a machine for such purpose'that will accomplish the object successfully and economically.

To enable those skilled in the arts to make and use my invention, I will describe the construction and operation of the same.

A shows a frame for supporting the working parts of the machine, made, preferably, of iron. The upper parts of the frame A are grooved, and receive boxes, in which are received the feed-rollers B, supported upon the shafts C. D show pinions secured upon the shafts C at one. end, which pinions D engage with and are driven by the cog-,wheel E, supported by a spindle, F, inserted in one side of the frame A.' The frame A is also. grooved upon the interior of its sides to receive theknife-block G, supporting the knife H, for shaving or dressing the leads or brass rule. This block G (see Figs. 5, 6, and 7 of the drawing) is provided upon its side With the projecting strips y and lugs g2, the former of which, when the knife-block is inserted inthe machine, slide into the groovesupon the interior of the sides, while the latter are received in the slotted portions ofthe frame.

The upper portion of the block G projects on both ends beyond the point for inserting the knife H, and the material of which the block is composed is cut away below the face of the block, so that the forward and rear ends of the same below its face are partially curved, and that when the block is placed in position in the machine between the rollers B, the projecting front and rear ends of the block shall partially cover the rollers B, and form, as it were, a support for the lead or rule before land after its presentation to the knife H. The further object in thus forming the upper portion of the knife-block is to prei vent as far as possible, the doubling up or bending of the lead in its passage through the machine.

The slot in the knife-block G, in which the knife H is received, is inclined, so that when the knife His inserted in the same it occupies a slightly-inclined position. Thus' the lead as it enters the machine is gradually (as far as its surfaceis concerned) brought into contact lwith the knife, and, as it. were, a drawing shave or cut is given by the knife.

The knife is slotted -about centrally, as at It', to admit of its adjustment, by means of the screws t', passed through the cross-rib of the block G, and bearing upon the under side of the knife H, and, when adjusted, is secured by a set-screw, k, entering the knife-block, and bearing in the slot in the knife.A The portion of the knife-block against which the knife rests when in position is inclined from the face downward, so that .the knife inclines slightly forwar I shows a second frame, or the upperportion of the machine, attached to the lower frame of the machine by the bolts J, forming I pivots upon which it may be turned, so that it can, when access is required to the interior of the machine, be turned over and back, and away from this lower frame.

Within this frame I are received a second pair of feed or friction rollers, B2, supported upon shafts C2, having upon one end the pinions D2, engaging with and driven by the pinions D upon the shafts C. The shafts G2 rest immovable boxes received in the slotted portions of the frame I, and over these boxes are placed the cap pieces K, through which pass set-screws L, by which the position of the rollers B2, shafts C2, and pinionsDzrelatively to the rollers B, shafts O, an'd pinions D is determined and fixed. The central portion of this upper frame is arched, through which is passed a regulating-screw, M. Be-` tweenk therollers B2 the-frame is grooved'uponA the interior of its sides to receive the pressure-block N, employed to hold the lead or rule in proper position `to beeshaved-orv dressed in? its passage through the machine. This press-iv ure-block consists of an upright plate or bo dy of metal, in the center of which the screw M,

passed through the arched `portion of the frame, h as its bearing, `and upon its sides are the projecting strips (as *in the case `of the knife-block) received Within'the grooves upon the interior `of the sides of the frame I.

The lower portion'of the blockis made of about the-same width -as the knife-block,and its front andrearends are partially inclined, so that-when placed in position they `shall partally cover the face `of the rollers B2,'and prevent the bending or doubling up of the lead or rule infits passage throughthe machine.

The forward endsof thelframe I areslotted, as are-also the forward ends of the frame A. Two standards, O, are'pinned at their lower ends Within the slotted portions of theframe A, and whenthe frame I is closed upon the frame A, the` standards O are receivedwithin the slotted portions ofthe frame I, and screwbolts I, inserted in the upper ends of these standards, serve to permanently hold the frame l in proper position upon the frame A.

The machine may be connected to any convenientmotonand be thus 'driven `or set in operation.

Such being the construction, the operation will be readily understood.

The rollers Bzland pressure-block N are adjusted to allow the lead or rule to pass through the machine, and the knife H is adjusted by4 means of the screws i to shave oi' the desired thickness of lead l or rule=upon one side, `and motion being communicated to the machine the cog-wheel E drives the pinions D and D2, and through them the shafts O and C2, upon which are the rollers B B?. .The lead orrule isinsertedbetween the forward rollers "B and B2, and bythem is carried along and presented to the knife H, positioned, as already set forth-in tl1e,knife-'blockG, andas it passes voverthelknife the `cutting-edge ofthe same shaves or dresses the under side of the lead or rule, the pressure-block N bearing upon its upper Iside, and holding the Alead Yor rule .Well

down in position that the shaving imparted to it may be uniform. After being thus shaved or dressed, the lead is carried along by the rollers B and B2 at the rearof'themachina and is deliveredfrom `the -machine by them. A re-adjnstment of `the `pressure-'block now takes place, land the unshaved` si'deof the lea'd or rule (the lead being inserted in the machine with its shaved or Vdressed side up)is brought into contactwith'the knife, andthe operation already described `is repeated,and thelead or rule shaved or dressed onboth sides, is delivered from the machine.

Having now-set forth my inventi0n,what I claim as new isl. The knife-block Gr. with its forward and rear ends, constructed to partially `coverthe ollilrs B, for the -purposes substantially set ort 2. The pressureLbloek,N,with itslower portion constructed tolpartially coverl the rollers B2, for the purposes substantially as set forth.

3. The combination, with the frames A` and I, of the revolvingrollers B `andBz, the knifeblock G supporting the knife H, and the pressure-block N, ,and regulating-screw M, constructed and operatingsubstantially `as and for the purpose specified.

`HENRY J. sironn.

Witnesses:

A. SIDNEY DOANE, THos. F. STODDARD. 

